Add record table widget feature flag (#18960)

Introduce a new feature flag for the record table widget, enabling
conditional rendering and state management based on its status. Update
related components and tests accordingly.

---------

Co-authored-by: Charles Bochet <charlesBochet@users.noreply.github.com>

packages/twenty-server/src/engine/twenty-orm/entity-manager/workspace-entity-manager.spec.ts

@@ -251,6 +251,7 @@ describe('WorkspaceEntityManager', () => {
         IS_RECORD_PAGE_LAYOUT_GLOBAL_EDITION_ENABLED: false,
         IS_CONNECTED_ACCOUNT_MIGRATED: false,
         IS_GRAPHQL_QUERY_TIMING_ENABLED: false,
+        IS_RECORD_TABLE_WIDGET_ENABLED: false,
       },
       userWorkspaceRoleMap: {},
       eventEmitterService: {